SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
GIBSON JOHN R

(Last) (First) (Middle)
C/O 3883 HOWARD HUGHES PARKWAY
SUITE 700

(Street)
LAS VEGAS NV 89169

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
AMERICAN PACIFIC CORP [ APFC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
09/17/2012
4. If Amendment, Date of Original Filed (Month/Day/Year)
09/19/2012
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 09/17/2012 M 50,000 A $8.3 168,137(1)(2) D
Common Stock 3,113(2) I Plan(3)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) $8.3 09/17/2012 M 50,000 (4) 12/13/2012 Common Stock 50,000 $0.00 0 D
Stock Option (Right to Buy) $6.34 (5) 09/13/2015 Common Stock 50,000 50,000 D
Stock Option (Right to Buy) $11.25 (6) 11/03/2018 Common Stock 20,000 20,000 D
Stock Option (Right to Buy( $7.15 (7) 11/10/2019 Common Stock 15,000 15,000 D
Explanation of Responses:
1. Of the amount of shares beneficially owned, 3,333 shares represent unvested awards of restricted stock that vest on 11/10/2012; and 3,500 shares represent unvested awards of restricted stock that vest in three equal annual installments beginning on 12/13/2012.
2. This Form 4 is being amended to correct an administrative error in Footnote 2 of Form 4/A filed 9/19/2012. Footnote 2 reflected that 6,117 shares were withdrawn from Mr. Gibson's qualified retirement plan in December, 2011, and that such shares are now owned directly by Mr. Gibson. The correct number of shares is 6,700.
3. The Reporting Person holds shares in a qualified retirement plan. The information in this report is based on a plan statement dated as of September 17, 2012.
4. The option vested in two equal annual installments beginning on 12/13/2002.
5. The option vested in two equal annual installments beginning on 9/13/2005.
6. The option vests in three equal annual installments beginning on 11/3/2009.
7. The option vests in three equal annual installments beginning on 11/10/2010.
Remarks:
John R. Gibson 09/19/2012
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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